Method and apparatus for processing a supplementary product sale at a point-of-sale terminal

A method comprising:

• scanning a bar code on at least one item;
• determining a purchase price for a purchase including the at least one item;
• receiving a rounding code from a first item not included in the purchase;
• determining a rounding multiple corresponding to the rounding code;
• rounding the purchase price based on the rounding multiple;
• and
• receiving the rounded purchase price in exchange for the at least one item and the first item.

A method comprising:

• scanning a bar code on at least one item;
• determining a purchase price for a purchase including at least one item;
• receiving a rounding code from a first item not included in the purchase;
• selecting a rounding multiple from a plurality of rounding multiples based on the received rounding code;
• rounding the purchase price based on the selected rounding multiple;
• and
• receiving the rounded purchase price in exchange for the at least one item and the first item.

A method comprising:

• receiving a signal indicative of at least one item from a customer;
• determining a price for the at least one item;
• receiving a signal indicative of a scanned bar code on a first item not included in the at least one item;
• selecting an integer from a plurality of integers based on the scanned bar code, in which at least one of the plurality of integers is “1”;
• determining a rounded price based on the price and the selected integer, in which the rounded price is a lowest multiple of the selected integer that is greater than the price;
• setting the rounded price as required payment for the at least one item and the first item;
• and
• registering the rounded price as being paid for by the customer.

A method comprising:

• receiving at least one item from a customer;
• receiving a first item from a customer, in which the first item is not included in the at least one item;
• scanning a bar code on the at least one item;
• determining a price for the at least one item;
• determining a rounding multiple based on the first item;
• determining a rounded price based on the price and the rounding multiple, in which the rounded price is a lowest multiple of the selected integer that is greater than the price;
• charging the customer the rounded price for the at least one item and the first item;
• and
• receiving payment of the rounded price from the customer.

A method comprising:

• receiving at least one item from a customer;
• receiving a first item from a customer, in which the first item is not included in the at least one item;
• determining a price for the at least one item;
• scanning a bar code on the first item;
• selecting an integer from a plurality of integers based on the scanned bar code, in which at least one of the plurality of integers is “1”;
• determining a rounded price based on the price and the selected integer, in which the rounded price is a lowest multiple of the selected integer that is greater than the price;
• charging the customer the rounded price for the at least one item and the first item;
• and
• receiving payment of the rounded price from the customer.

A method comprising:

• receiving a plurality of items from a customer, each item having a bar code;
• scanning the bar code on each of the plurality of items;
• selecting an integer from a plurality of integers based on one of the scanned bar codes;
• determining a price of a subset of the plurality of items, the subset not including the item corresponding to the one of the scanned bar codes;
• determining a rounded price based on the price and the selected integer, in which the rounded price is a lowest multiple of the selected integer that is greater than the price;
• charging the customer the rounded price for the plurality of items;
• and
• receiving payment of the rounded price from the customer.